@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.
            json().
            //propertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE).
            propertyNamingStrategy(PropertyNamingStrategy.LOWER_CAMEL_CASE).
            //featuresToEnable(SerializationFeature.INDENT_OUTPUT).
            //featuresToEnable(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY).
            build();
    SimpleModule module = new SimpleModule();
    module.addSerializer(Set.class,
            new StdDelegatingSerializer(Set.class, new StdConverter<Set, List>() {
                @Override
                public List convert(Set value) {
                    LinkedList list = new LinkedList(value);
                    Collections.sort(list);
                    return list;
                }
            })
    );
    objectMapper.registerModule(module);
    HttpMessageConverter c = new MappingJackson2HttpMessageConverter(
            objectMapper
    );
    converters.add(c);
}
 

@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.
            json().
            //propertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE).
            propertyNamingStrategy(PropertyNamingStrategy.LOWER_CAMEL_CASE).
            //featuresToEnable(SerializationFeature.INDENT_OUTPUT).
            //featuresToEnable(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY).
            build();
    SimpleModule module = new SimpleModule();
    module.addSerializer(Set.class,
            new StdDelegatingSerializer(Set.class, new StdConverter<Set, List>() {
                @Override
                public List convert(Set value) {
                    LinkedList list = new LinkedList(value);
                    Collections.sort(list);
                    return list;
                }
            })
    );
    objectMapper.registerModule(module);
    HttpMessageConverter c = new MappingJackson2HttpMessageConverter(
            objectMapper
    );
    converters.add(c);
}
 

@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    ObjectMapper objectMapper = Jackson2ObjectMapperBuilder.
            json().
            //propertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE).
            propertyNamingStrategy(PropertyNamingStrategy.LOWER_CAMEL_CASE).
            //featuresToEnable(SerializationFeature.INDENT_OUTPUT).
            //featuresToEnable(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY).
            build();
    SimpleModule module = new SimpleModule();
    module.addSerializer(Set.class,
            new StdDelegatingSerializer(Set.class, new StdConverter<Set, List>() {
                @Override
                public List convert(Set value) {
                    LinkedList list = new LinkedList(value);
                    Collections.sort(list);
                    return list;
                }
            })
    );
    objectMapper.registerModule(module);
    HttpMessageConverter c = new MappingJackson2HttpMessageConverter(
            objectMapper
    );
    converters.add(c);
}